A: I used a standard sheetrock screw since I was screwing directly into a wooden beam.
A: Thank you for your inquiry on the NIBCO 1/2 in. CPVC CTS Tube Strap (5-Pack). The hole sizes are .17 in diameter so a screw with a diameter of 1/8 in. should work. If you have additional questions, you can reach a NIBCO Technical Services Advisor, M-F 8am - 5pm EST, by phone at (888) 446-4226.
A: You can use most any size you want, I used a simple drywall screw.
A: CPVC Tube Straps are designed, engineered, and tested to hold CPVC pipe, not electrical cable.
A: yes. and since its plastic you don't need to worry about causing a short.
A: Yes, this can be used with a PVC pipe.
A: Yes, would work perfect with PVC, I used it to hold Pex tubing.